HP A4500A Hardware Manual - rp24xx, Customer Viewable - Page 167

Step 5., IO Timeout Seconds

Page 167 highlights

HotPlug Disk Drive Removal (HPUX Systems Only) read/write LV Status available/syncd Mirror copies 1 Consistency Recovery MWC Schedule parallel LV Size (Mbytes) 256 Current LE 64 Allocated PE 128 Stripes 0 Stripe Size (Kbytes) 0 Bad block off Allocation strict/contiguous IO Timeout (Seconds) default --- Distribution of logical volume ---PV Name LE on PV PE on PV /dev/dsk/c1t6d0 64 64 /dev/dsk/c2t6d0 64 64 --- Logical extents ---LE PV1 PE1 Status 1 PV2 PE2 Status 2 00000 /dev/dsk/c1t6d0 00000 current /dev/dsk/c2t6d0 00000 current 00001 /dev/dsk/c1t6d0 00001 current /dev/dsk/c2t6d0 00001 current 00002 /dev/dsk/c1t6d0 00002 current /dev/dsk/c2t6d0 00002 current 00003 /dev/dsk/c1t6d0 00003 current /dev/dsk/c2t6d0 00003 current 00004 /dev/dsk/c1t6d0 00004 current /dev/dsk/c2t6d0 00004 current 00005 /dev/dsk/c1t6d0 00005 current /dev/dsk/c2t6d0 00005 current 00006 /dev/dsk/c1t6d0 00006 current /dev/dsk/c2t6d0 00006 current 00007 /dev/dsk/c1t6d0 00007 current /dev/dsk/c2t6d0 00007 current 00008 /dev/dsk/c1t6d0 00008 current /dev/dsk/c2t6d0 00008 current The pvkey (0 or 1 in this example) shown in the first command maps to the device file names (/dev/dsk/c1t6d0 or /dev/dsk/c2t6d0) in the second command under columns PV1 and PV2, respectively. Step 5. Reduce any logical volumes that have mirror copies on the faulty disk drive so that they no longer mirror onto that disk drive (note the -A n option): # lvreduce -m 0 -A n -k /dev/dsk/cXtXcX & (for one-way mirroring) OR # lvreduce -m 1 -A n -k /dev/dsk/cXtXcX & (for two-way mirroring). For example: # lvreduce -m 0 -A n -k /dev/vg00/lvol4 /dev/dsk/c2t4d0 1& The following message will appear: Logical volume /dev/vg00/lvol4 has been successfully reduced. lvlnboot: Logical Volume has no extents It is important to include the ampersand (&) at the end of the command line. This lvreduce process will hang, and you will need terminal control to kill the command. Once the "successfully reduced" message has been generated, manually kill the process, using the kill -9 command. a. Use the ps command to find the PID for the lvreduce process. # ps -ef | grep lvreduce b. Stop the process. (This may take several minutes before the process finally ends. # kill -9 Step 6. Repeat steps 4 and 5 for all logical volumes. Step 7. With all logical volumes reduced, now reduce the volume group using the vgreduce command. For example: # vgreduce /dev/vg00 /dev/dsk/c2t6d0 Chapter 239

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Chapter
HotPlug Disk Drive Removal (HPUX Systems Only)
239
read/write
LV Status
available/syncd
Mirror
copies
1
Consistency Recovery
MWC
Schedule
parallel
LV Size (Mbytes)
256
Current LE
64
Allocated PE
128
Stripes
0
Stripe Size (Kbytes)
0
Bad block
off
Allocation
strict/contiguous
IO Timeout (Seconds)
default
---
Distribution of logical volume ---PV Name
LE on PV
PE on PV
/dev/dsk/c1t6d0
64
64
/dev/dsk/c2t6d0
64
64
--- Logical extents ---LE
PV1
PE1
Status 1 PV2
PE2
Status 2 00000 /dev/dsk/c1t6d0
00000 current
/dev/dsk/c2t6d0
00000 current
00001 /dev/dsk/c1t6d0
00001 current
/dev/dsk/c2t6d0
00001 current
00002 /dev/dsk/c1t6d0
00002 current
/dev/dsk/c2t6d0
00002 current
00003 /dev/dsk/c1t6d0
00003 current
/dev/dsk/c2t6d0
00003 current
00004 /dev/dsk/c1t6d0
00004 current
/dev/dsk/c2t6d0
00004 current
00005 /dev/dsk/c1t6d0
00005 current
/dev/dsk/c2t6d0
00005 current
00006 /dev/dsk/c1t6d0
00006 current
/dev/dsk/c2t6d0
00006 current
00007 /dev/dsk/c1t6d0
00007 current
/dev/dsk/c2t6d0
00007 current
00008 /dev/dsk/c1t6d0
00008 current
/dev/dsk/c2t6d0
00008 current
The p
vkey
(0 or 1 in this example) shown in the first command maps to the device file names
(/dev/dsk/c1t6d0 or /dev/dsk/c2t6d0) in the second command under columns PV1 and PV2,
respectively.
Step 5.
Reduce any logical volumes that have mirror copies on the faulty disk drive so that they no longer
mirror onto that disk drive (note the
-A n
option):
# lvreduce -m 0 -A n -k <LV name> /dev/dsk/cXtXcX <pvkey#>&
(for one-way mirroring)
OR
# lvreduce -m 1 -A n -k <LV name> /dev/dsk/cXtXcX <pvkey#>&
(for two-way mirroring).
For example:
# lvreduce -m 0 -A n -k /dev/vg00/lvol4 /dev/dsk/c2t4d0 1&
The following message will appear:
Logical volume /dev/vg00/lvol4 has been successfully reduced.
lvlnboot: Logical Volume has no extents
It is important to include the ampersand (&) at the end of the command line. This
lvreduce
process
will hang, and you will need terminal control to kill the command. Once the "successfully reduced"
message has been generated, manually kill the process, using the kill -9 command.
a.
Use the
ps
command to find the PID for the
lvreduce
process.
# ps -ef | grep lvreduce
b.
Stop the process. (This may take several minutes before the process finally ends.
# kill -9 <PID>
Step 6.
Repeat steps 4 and 5 for all logical volumes.
Step 7.
With all logical volumes reduced, now reduce the volume group using the
vgreduce
command. For
example:
# vgreduce /dev/vg00 /dev/dsk/c2t6d0